School Grade Calculator
Enter points earned and points possible; the calculator returns the percentage and a letter grade on a plus/minus scale. 85 out of 100 is 85 percent, which maps to a B.
What this calculator does
The School Grade Calculator estimates your result instantly from the values you enter, using standard math & conversions formulas. Enter points earned and points possible; the calculator returns the percentage and a letter grade on a plus/minus scale. 85 out of 100 is 85 percent, which maps to a B. Calculations run in your browser, so nothing you type is sent to a server, and the output is an estimate rather than a certified or official figure.
Result
About School Grade Calculator
The School Grade Calculator converts a raw score into a percentage and a letter grade. It divides points earned by points possible, multiplies by 100, and assigns a letter using a standard plus/minus scale.
Formula & Mathematical Calculation
Percentage = f(Points Earned, Points Possible)
Calculated according to standard math formulas implemented in the calculator core.
Calculation Example
Enter Points Earned 85 and Points Possible 100, then click Calculate. The tool shows Percentage: 85 % and Letter Grade: B.
Key Benefits
- Converts any score into a percentage instantly
- Assigns a letter grade on a plus/minus scale from A+ down to F
- Works with any points-possible total, not just 100
- Requires points possible above zero to avoid dividing by zero
How to Use this Calculator
-
Enter your score
Type the points earned and the points possible. -
Calculate
Click Calculate. -
Read the grade
Read the Percentage and Letter Grade boxes.
Assumptions & Limitations
What the calculation assumes
- Every value you enter is treated as an exact, known amount.
- Any rate or interval you enter is assumed to hold for the whole period unless the form asks for it separately.
- Results use standard published formulas and account only for the values entered above.
- Rounding is applied for display; the underlying calculation uses your full precision.
- Results are returned in the same units you enter, unless the tool states the output unit.
What it does not cover
- School Grade Calculator produces a calculated result for reference and learning, not a certified or official measurement.
- Real-world outcomes differ when tolerances, rounding rules or local standards apply.
- Definitions and standards vary by region and change over time; verify the convention that applies to your case.
- Figures are only as accurate as the inputs you supply — check them before acting on the result.
- For work where the result carries real consequences, confirm it against an authoritative source.
Frequently Asked Questions
Free to use, no account needed. Calculations run in your browser, so nothing you type is sent to a server. Results are estimates — how we build and check our calculators.